<template>
<div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
        <!-- 搜索内容和添加商品按钮 -->
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="goAddGoodsPage">添加商品</el-button>
            </el-col>
        </el-row>
        <!-- 商品表格区域 -->
        <el-table :data="goodsList" border stripe>
            <el-table-column type="index">
            </el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格（元）" prop="goods_price" width="120px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="90px"></el-table-column>
            <el-table-column label="创建时间" width="170px">
                <template slot-scope="scope">
                    {{scope.row.add_time|dateFormat}}
                </template>
            </el-table-column>
            <el-table-column label="操作" width="140px">
                <template slot-scope="scope">
                    <!-- 编辑按钮 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                    <!-- 删除按钮 -->
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
        </el-pagination>
    </el-card>
</div>
</template>

<script>
export default {
  data() {
    return {
      // 查询商品列表需要的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 商品总数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList() {
      const {
        data: res
      } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPageNum) {
      this.queryInfo.pagenum = newPageNum
      this.getGoodsList()
    },
    // 点击添加商品按钮，跳转到添加商品页面
    goAddGoodsPage() {
      this.$router.push('/goods/add')
    },
    // 删除商品
    async removeById(id) {
      const {
        data: res
      } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) return this.$message.error('删除商品列表失败！')
      this.$message.success('删除商品列表成功！')
      this.getGoodsList()
    }
  }
}
</script>

<style lang="less" scoped>

</style>
